/* Variables */
:root {
  --clr-bg: hsl(0, 0%, 98%);
  --clr-primary: #00c2ff;
  --clr-secondary: #4a4a4a;
  --clr-tertiary: #757575;

  --font-base: 'Roboto', 'Helvetica', sans-serif;
  --font-thick: 300;
  --font-bold: 700;
}

/* Global styles */
html {
  font-size: 62.5%;
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-base);
  font-size: 1.6rem;
  min-height: 100vh;
  min-width: 28rem;
  background: var(--clr-bg);
  transition: background 200ms ease-in-out;
}

/* Prevent from zooming on mobile devices to provide a better user experience */
select:focus {
  font-size: inherit;
}

.container {
  max-width: 120rem;
  margin: 0 auto;
}

/* Dark theme styles */
body.dark {
  background: #555;
  color: white;
}

body.dark .generateBtn {
  background-color: var(--clr-primary);
}

/* Buttons */
.btn {
  border: none;
  font-family: inherit;
  font-weight: var(--font-bold);
  font-size: 1.6rem;
  text-align: center;
  color: white;
  display: inline-block;
  padding: 1rem 6rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: transform 200ms ease-in-out;
}

.btn:hover {
  transform: scale(0.98);
}

.btn--primary {
  background-color: royalblue;
}

.btn--secondary {
  background-color: var(--clr-tertiary);
}

.generateBtn {
  font-size: clamp(1rem, 4vw, 2.5rem);
  font-weight: var(--font-thick);
  margin: 5rem auto;
  padding: 1rem 2rem;
  box-shadow: 0 4px 10px -2px rgba(0, 0, 0, 0.25);
  position: absolute;
  top: 50vh;
  left: 50%;
  transform: translateX(-50%);
}

.generateBtn:hover {
  transform: translateX(-50%) scale(0.98);
}

/* Dark theme checkbox */
.dark-theme__checkbox {
  -webkit-appearance: none;
  position: fixed;
  display: block;
  right: 2rem;
  bottom: 2rem;
  width: 5rem;
  height: 2.5rem;
  background: var(--clr-secondary);
  border-radius: 2rem;
  cursor: pointer;
  box-shadow: 0px 0px 3px 2px rgba(0, 0, 0, 0.15);
  transition: all 300ms ease-in-out;
}

.dark-theme__checkbox:checked {
  box-shadow: 0px 0px 3px 2px rgba(255, 255, 255, 0.15);
}

/* Dark theme circle */
.dark-theme__checkbox::before {
  content: '';
  position: absolute;
  top: 0.4rem;
  left: 0.5rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: white;
  transition: all 300ms ease-in-out;
}

.dark-theme__checkbox:checked::before {
  transform: translateX(2.5rem);
  background-color: var(--clr-secondary);
}

.dark-theme__checkbox:checked {
  background-color: white;
}

/* Navbar */
.navbar {
  background-color: var(--clr-secondary);
  color: white;
  padding: 2rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.navbar__container {
  display: flex;
  justify-content: space-between;
}

.navbar__left {
  display: flex;
  justify-content: center;
  align-items: center;
}

.navbar__logo {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  cursor: pointer;
}

.navbar__logo i {
  margin-left: 1rem;
}

.navbar__right {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
}

.navbar__range {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.navbar__range label {
  font-size: clamp(1.4rem, 2vw, 1.6rem);
  font-weight: var(--font-thick);
}

.navbar__range input {
  border-radius: 1.5rem;
  height: 1rem;
  width: 13rem;
  cursor: pointer;
  -webkit-appearance: none;
  background-color: white;
  overflow: hidden;
}

.navbar__range input:disabled {
  background-color: var(--clr-tertiary);
}

.navbar__range input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 1px solid white;
  background: linear-gradient(var(--clr-primary), royalblue);
  box-shadow: -14rem 0 0 13.7rem var(--clr-primary);
}

.navbar__range input::-moz-range-thumb {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 1px solid white;
  background: linear-gradient(var(--clr-primary), royalblue);
  box-shadow: -14rem 0 0 13.7rem var(--clr-primary);
}

.navbar__select-container {
  position: relative;
  display: flex;
  align-items: center;
}

.navbar__select {
  max-width: 100%;
  background: var(--clr-tertiary);
  color: white;
  font-family: inherit;
  font-size: clamp(1rem, 3.5vw, 1.6rem);
  font-weight: var(--font-bold);
  padding: 1rem 3rem 1rem 2rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  -webkit-appearance: none;
}

.navbar__arrow {
  position: absolute;
  right: 1rem;
  pointer-events: none;
}

/* Main sorting section */
.sorting {
  position: relative;
  padding: 0 2rem 2rem;
  text-align: center;
}

.sorting__container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 2px;
}

.sorting__item {
  background: var(--clr-primary);
  transition: height 100ms ease-in-out;
}

/* Legend */
.sorting__legend {
  position: absolute;
  top: 40vh;
  left: 50%;
  width: 100%;
  transform: translateX(-50%);
  padding: 1.5rem;
  margin: 3rem auto 1rem;
  display: none;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  font-weight: var(--font-bold);
  gap: 2rem;
}

.sorting__quick,
.sorting__radix {
  position: relative;
  text-align: center;
}

.sorting__quick span {
  width: 1rem;
  height: 1rem;
  background: red;
  display: inline-flex;
}

.sorting__quick:nth-child(1) span {
  background-color: magenta;
}

.sorting__quick:nth-child(2) span {
  background-color: crimson;
}

.sorting__quick:nth-child(3) span {
  background-color: orange;
}

.sorting__radix::before {
  content: '';
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  top: -1.75rem;
  left: -0.4rem;
  z-index: -100;
}

.sorting__radix:nth-child(1)::before {
  background-color: crimson;
}

.sorting__radix:nth-child(2)::before {
  background-color: orange;
}

.sorting__radix:nth-child(3)::before {
  background-color: yellow;
}

.sorting__radix:nth-child(4)::before {
  background-color: green;
}

.sorting__radix:nth-child(5)::before {
  background-color: blue;
}

.sorting__radix:nth-child(6)::before {
  background-color: indigo;
}

.sorting__radix:nth-child(7)::before {
  background-color: brown;
}

.sorting__radix:nth-child(8)::before {
  background-color: turquoise;
}

.sorting__radix:nth-child(9)::before {
  background-color: gray;
}

.sorting__radix:nth-child(10)::before {
  background-color: black;
}

/* Animations */
@keyframes fade-in {
  from {
    opacity: 0;
    /* transform: translateX(300vh); */
  }

  to {
    opacity: 1;
    /* transform: translateX(0); */
  }
}

/* Media Queries */

/* 1100px */
@media screen and (max-width: 68.75em) {
  /* Make layout "vertical" */
  .wrapper {
    display: grid;
    grid-template-columns: 30% 70%;
  }

  .navbar {
    padding: 1rem;
    text-align: center;
    min-height: 100vh;
  }

  .navbar__container,
  .navbar__right {
    flex-direction: column;
  }

  .navbar__right {
    margin-top: 5rem;
  }

  .navbar__right .btn {
    width: 100%;
    padding: 1rem 0;
  }
}

/* 550px */
@media screen and (max-width: 34.375em) {
  .wrapper {
    grid-template-columns: 40% 60%;
  }

  .navbar__range input {
    max-width: 20vw;
  }
}

/* 450px */
@media screen and (max-width: 28.125em) {
  .navbar__select {
    padding-left: 1rem;
    padding-right: 2.5rem;
  }

  .generateBtn {
    top: 55vh;
  }
}